- BURGAN LTDDissolved- 03628089 - Dissolved on 1 June 2010 
- WHITTAKER BELL LTDActive - Proposal to Strike off- 06551082 - Incorporated on 1 April 2008 
- PAUL H WHITTAKER LTD- 13099037 - Incorporated on 24 December 2020 
- EMMA WHITTAKER LTDDisolved- 14039575 - Dissolved on 17 January 2023 
- WHITTAKER RAIL LTDActive - Proposal to Strike off- 10305731 - Incorporated on 1 August 2016 
- EMMA WHITTAKER LTDActive - Proposal to Strike off- 11672523 - Incorporated on 12 November 2018 
- WHITAKER PLANT HIRE LIMITEDActive - Proposal to Strike off- 04246339 - Incorporated on 4 July 2001 
- WHITTAKER PIERT HOLDINGS LTDActive - Proposal to Strike off- 11174873 - Incorporated on 29 January 2018 
- KYLE WHITTAKER LTDDisolved- 14489581 - Dissolved on 22 April 2025 
- GLEW & WHITTAKER 2000 LTDDissolved- 03639487 - Dissolved on 11 May 2010 
- G WHITTAKER REALISATIONS LIMITED- 03477935 - Incorporated on 9 December 1997 
- KARL WHITTAKER LIMITED- 11545053 - Incorporated on 31 August 2018 
- WHITTAKER JOINERY LTD- 12037681 - Incorporated on 6 June 2019 
- CLIFFORD WHITTAKER LIMITED- 01887387 - Incorporated on 19 February 1985 
- WHITTAKER 926 LIMITEDDissolved- 07153618 - Dissolved on 20 September 2011 
- HERSOM WHITTAKER LIMITED- 07232647 - Incorporated on 22 April 2010 
- BROWN & WHITTAKER LIMITEDDissolved- 00424257 - Dissolved on 12 August 2016 
- WHITTAKER (HUYTON) LIMITEDLiquidation- 00859808 - Incorporated on 24 September 1965 
- PROCTOR & WHITTAKER LIMITEDDisolved- 01463060 - Dissolved on 26 July 2022 
- WHITTAKER CONSULTANTS LTDDissolved- 06986786 - Dissolved on 8 January 2013